V-Lab
CBOE EFA ETF Volatility Index GJR-GARCH Volatility Analysis
Volatility prediction for Friday, July 24th, 2026
1 Day
152.40%
increased by 24.56%
1 Week
152.68%
increased by 24.84%
1 Month
153.47%
increased by 25.63%
Analysis last updated: Friday, July 24, 2026 at 11:37 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 2008 to Jul 17, 2026Model Insight
This asset shows a rare inverse leverage effect: positive returns raise next-day volatility 254% more than negative returns. Volatility rises more after gains than after losses, the reverse of the usual leverage effect and uncommon among risky assets.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 5.0000 | 20.62*** |
α ARCH Response to squared shocks | 0.2135 | 17.69*** |
β GARCH Volatility persistence | 0.8107 | 138.89*** |
γ leverage Additional response to negative shocks | -0.1531 | -9.11*** |
Persistence:
0.948
Half-life:
13 days
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